SCRs 1.25 Amp, Planar FEATURES Available as Either JAN or Standard Types Operating D.C. Current Range: 5 to 1250mA e Pulse Currents: to 30A Voltage Ratings: to 200V @ Maximum Trigger Current: 0.2mA Maximum Trigger Voltage: 0.8V @ All Leads Isolated from Case Maximum 9,_: 20C/W ABSOLUTE MAXIMUM RATINGS Repetitive Peak Off-State Voltage, Vory Repetitive Peak Reverse Voltage, Very D.C. On-State Current, |; 100C Ambient . 100C Case ......... Repetitive Peak On-State Current, ligy .-.. Peak One Cycle Surge (Non-Rep.) On- State Current, bisa Peak Gate Current, Ioy Average Gate Current, lejav) Reverse Gate Voltage, Veg 0 .e:cciee Thermal Resistance, Junction to Case, RO, oc. Operating and Storage Temperature Range MECHANICAL SPECIFICATIONS 2N1870A-2N1874A DESCRIPTION These are premium PNPN controlled switches intended for use in applications requiring a high degree of reliability assurance. The JAN types are specified under MIL-S-19500/198, and are included in MIL-STD-701 as recommended types for military usage. This series is useful in a wide variety of applications including: safety, arming and detonating circuits; timing and programming circuits; protective and warning circuits; driving relays; driving indicator lamps, encoding and decoding circuits; replacing relays, thyratrons, and magamps; servo motor control; pulse generation; plus many others. 2N1870A 2N1871A 2N1872A 2N1873A 2N1874A SANZN1870A JAN2N1871A JAN2N1672A - JAN2N18740 200V 200V 2N1870A-2N1874A TO-9 -CATHODE [] 522 aa UNITRODEELECTRICAL SPECIFICATIONS (at 25C unless noted)t 2N1870A-2N1874A, Test Symbol Min. Typical Max. Units Test Conditions Subgroup 1 (Visual and Mechanical) Subgroup 2 (25C Tests) Off-State Current lorm _ 0.5 10 pA Rex = 1K, Vogy = + Rating Reverse Current leew - 0.5 10 pA Rex = 1K, Vary = Rating Gate Trigger Voltage Ver 0.4 0.55 0.8 v Res = 100 ohms, V, = 5V Gate Trigger Current ler 30 200 BA Res > 10K ohms, Vp = 5V On-State Voltage vy _ 1.8 25 Vv lj = 2A (pulse test) Off-State Voltage Critical of Rise dv./dt 100 _ Vius Specified test circuit Reverse Gate Current ler _ 0.5 10 BA Voerm = 5V, anode open Holding Current ly 0.3 - 5.0 mA Ig = 150A, Vp = 5V Subgroup 3 (125C Tests) High Temp. Off-State Current lorm _ b 100 vA Rex = 1K, Vogy = + Rating High Temp. Reverse Current ler _ 15 160 BA Rex = 1K, Very = Rating High Temp. Gate Non-Trigger Voltage Veo 0.2 _ a V Res = 100 ohms, Vp = 5V High Temp. Holding Current ly 0.2 _ _ mA le = 150uA, Vp = 5V Subgroup 4 (65C Tests) Low Temp. Gate Trigger Voltage Ver _ _- 1.0 v Rex = 100 ohms, Vp = 5V Low Temp. Gate Trigger Current ler _ 500 uA Rex > 10K ohms, V, == 5V Low Temp. Holding Current hi, _ 15 mA Ig = 150A, V,, = SV TAN values in this table are JEDEC registered. Note: Voltage ratings apply over the full operating temperature range, provided the gate is connected to the cathode through a resistor, 1 K or smaller, or other adequate gate bias is used. Triggering and Bias Stabilization 1. Gate Trigger Current 800 a 3 400 ALL UNITS FIR max, 3 min. GATE TRIGGER CURRENT (uA) NO UNITS FIRE 5-200 400 65 -2 90 25 50 78 100 125 150 T, JUNCTION TEMPERATURE (C) UNITRODE CORPORATION 5 FORBES ROAD LEXINGTON, MA 02173 + TEL. (617) 861-6540 TWX (710) 326-6509 TELEX 95-1064 523 Ve; ~ GATE TRIGGER VOLTAGE (V) P b r te Gate Trigger Voltage ALL UNITS FIRE Waa Ver max. Y 77 UL, Ly Ver min. Z /) ! I NO UNITS FIRE 25 0 25 50 75 100 125 150 T, JUNCTION TEMPERATURE (C) PRINTED IN U.S.A.2N1870A-2N1874A Holding Current 1. Max. Holding Current (Current Bias) 2. Max. Holding Current (Resistor Bias) MAX. 1,,~- MAX. HOLDING CURRENT (mA) MAX. |,, MAX. HOLDING CURRENT (mA) 65 25 0 2 50 75 100 125 150 "65 25 0 25 50 75 100 125 150 T, ~ JUNCTION TEMPERATURE (C) T, JUNCTION TEMPERATURE (C} 3. Min. Holding Current (Current Bias) 4, Min, Holding Current (Resistor Bias) MIN. 1, - MIN. HOLDING CURRENT (mA) MIN. |, MIN. HOLDING CURRENT (mA) = .05mA 65 +25 0 25 50 75 100 125 150 "65 ~25 0 25 0 75 100 125 150 T, JUNCTION TEMPERATURE (C) T, JUNCTION TEMPERATURE (C) UNITRODE CORPORATION 5 FORBES ROAD LEXINGTON, MA 02173 + TEL. (617) 861-6540 TWX (710) 326-6509 + TELEX 95-1064 524 PRINTED IN U.S.A.2N1870A-2N1874A Current Ratings Thermal Design 1. On-State Current vs. Voltage 2. Peak Current vs. Case Temperature P, POWER DISSIPATION (W) 25 2 15 1 5 0 <= 50 E B20 =z < fo 5 3 10 w ua z = 5 3 b z E ia o a 1 S a | 5 5 _ FE Gi ! a 2 argh REE } 4 05 21 2 #5 ft 2 5 10 20 50 z os V, ON VOLTAGE (V) ~ "90 100 110 120 130 140-150 To maz MAX. CASE TEMPERATURE (C) 3. Peak Current vs. Ambient Temperature 4, Surge Current vs. Time P, POWER DISSIPATION (W) . 625 5 375 25125 0 50 \ | TT = \ i, BEFORE SURGE = 0 5 = 20 Ke & <= NX +4 & & 10 ME > a o NX re) x N Ee > N = 6 \Y 2 tj 2 +SOLID LINE; RATED kK - 3 & BLOCKING VOLTAGE ~ [Te = 100C x % 1 MAY BE APPLIED = a < IMMEDIATELY AFTER SURGE a : Bs try a wv, = | DASH LINE: BLOCKING VOLTAGE MAY | , - 3 .2 }NOT BE SUSTAINED FOR 0.1 SECONDS w - AFTER SURGE e 1 oe . | 05 2, 10-5 20-4 10-3 10-2 10- 1 10 10? 103 0 25 50 75 100 125 150 SURGE DURATION (s) T, max MAX. AMBIENT TEMPERATURE (C) 5. Average Current vs. Case Temperature 6. Average Current vs. Ambient Temperature P, POWER DISSIPATION (W) P, POWER DISSIPATION (W) 2.5 2 15 1 5 0 625 5 +375 25 125 0 liyav) AVG. ON-STATE CURRENT (A) Iijav) AVG. ON-STATE CURRENT (A) 0 90 100 110 120 130 140 150 0 25 50 75 100 125150 To max -~ MAX. CASE TEMPERATURE (C) Tp max MAX. AMBIENT TEMPERATURE (C) UNITRODE CORPORATION 5 FORBES ROAD LEXINGTON, MA 02173 TEL. (617) 861-6540 TWX (710) 326-6509 TELEX 95-1064 525 PRINTED IN U.S.A.